I have only checked the C++ part. The website's page on C++ holds 61 C++ questions (in non-perfect English) that you can use to check if you know most about the language. I was most interested in the question's answers, but to view these, you need to send an email to the webmaster. I find it strange that I could not click on a link with the answers.

The list is of questions is fine, but not as extensive as the C++ FAQ lite. The C++ FAQ exceeds this site in also providing the answer one click away.

Because I could not rate the answers, I find it difficult to rate this site in a certain number of stars. Therefore, I started with three stars ('fine') and subtracted one star for not supplying the answers.